New Alpha Chairman

Douglas J. Tullio, 54, has been named chairman of Alpha Microsystems, a Santa Ana-based software company and provider of Internet technologies.

Tullio, who will continue to serve as president and chief executive officer, replaced Clarke E. Reynolds, who had been chairman since 1991. Reynolds first served with Alpha Microsystems as an independent consultant in 1984, and has since held various senior management positions, including president, chief executive and chief operating officer.